Mount Diablo State Park is one of the ecological treasures of the San Francisco Bay Area. Every season in the park has its special qualities. Discover them for yourself, from the mountain's 3,849-foot summit to its beautiful wildflowers, extensive trail system, fascinating wildlife, and distinctive rock formations.

These are all great ways for you to support Mount Diablo State Park

Biking Mount Diablo

Mt. Diablo State Park Mountain Biking InformationThe following information is taken from the State Park biking guide dated January 1997 with modifications.

Mt. Diablo State Park is an excellent place to mountain bike. This guide is designed to help off-road cyclists enjoy the park safely without damaging its sensitive environments. Mountain bicyclists share the backcountry with hikers and horseback riders. It's important to be considerate of other recreational users.

Where Can I Ride?

Most single track trails are closed to mountain bikes. Mountain bikes may be ridden on paved roads, maintained fire roads and authorized trails. The authorized trails currently open to bicycles are: Mother's trail, Summit trail from Southgate road to Rock City, North Peak trail from Devil's Elbow to Prospectors Gap, Oyster Point Trail, Buckeye Trail and Diablo Ranch Trail.

Cross-country riding is not permitted.

Cyclists should see park staff for other rules and regulations concerning trail use. Always wear a helmet and carry water. Hypothermia can occur on cold days while riding down the mountain. Always carry extra clothing. Dress is layers, gloves and hoods are recommended

Follow all posted speed limits. Keep speed on down hill descents to under 15 mph or slower if conditions warrant. Excessive down hill speed can be disastrous. When riding up hill, please stay single file and as far to the right as possible.

Rock City to Pine Canyon via Wall Point Fire Road, up Pine Canyon to Barbecue Terrace Group Camp, short distance on Summit Road to Summit Trail, back down to Rock City. About seven miles. Tough climb out of Pine Canyon to Barbecue Terrace.

Curry Point to Balanced Rock via Knobcone Point Fire Road. About four miles round trip. Moderate climbs.

Some Applicable Park Regulations...

The park is open to the public from 8 AM to sunset. Bicycling within the park after sunset is prohibited.

The possession/consumption of alcoholic beverage is prohibited.

All features within the park are protected. Do not remove or disturb plants, animals, or geological features.

Park closures occur during periods of very high and extreme fire danger. The closures apply to bicyclists.

Helmets are required on juveniles. All riders are encouraged to use helmets. Helmets save lives and prevent serious injuries.

Courtesy

Always yield to hikers and horseback riders.

Pass with care. Let others know of your presence. Use a handlebar chime or an audible greeting. When approaching a horseback rider, ask the rider for instructions. It may be necessary to dismount.

Avoid the backcountry when muddy conditions are prevalent.

Control your speed.

Close cattle gates. Do not frighten cows.

Do not litter. Wrappers, banana peels, and blown tubes don't belong in the backcountry.

Check the rules that apply to open space areas that border Mt. Diablo State Park.

The Mt. Diablo State Park Trail Map, a publication of the Mt. Diablo Interpretive Association [MDIA], can be purchased at park entrance stations [North Gate and South Gate], the Summit Visitor Center, Mitchell Canyon Visitor Center, and the Mitchell Canyon District Office. It can also be obtained through the mail from MDIA or through the Online Store.